Individual Calculations July 2010
 O`Donnell, Tom  Total change: -6.80  Rating chartPersonal card
 2010 Eastern Ontario Open Ottawa, Ontario CAN 2010-06-11
RcRownchangeKK*chgGame
 2240 2373 2.00 4 -0.68 10 -6.80 
  Collins, Christian 2118 CAN1.0010.19101.90 
  Pacey, Kevin 2201 CAN0.501-0.2310-2.30 
  Sambuev, Bator g2464 RUS0.001-0.3810-3.80 
  Modwal, Sankalp 2175 IND0.501-0.2610-2.60 

Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change)
 

 

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